Window shade



FIG. 1 is a front, top and side perspective view of the window shade embodying the design of the present invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof; and,

FIG. 4 is a top plan view thereof, the side opposite being a mirror image of the side shown in FIG. 4. 

The ornamental design for a window shade, as shown and described. 